Schneider Optics Featured Downloads

MTF is the best proxy for lens performance, but the math behind it and the graphs that depict it often obstruct understanding. This paper demystifies MTF, arming vision system decision makers with the knowledge they need about it to choose the right lens every time.

Continuing advances in high-resolution sensors with higher pixel densities and smaller pixels are challenging optics manu­facturers to produce lenses of increased per­formance. To understand how lenses can affect the performance of imaging systems, it is necessary to grasp the physics behind diffraction, lens aperture, focal length, and the wavelength of light (see “Match­ing Lenses and Sensors,” Vision Systems Design, March 2009). Additionally, other design limitations also restrict the optical capabilities of a lens, even before manufac­turing tolerances are taken into account.

Datasheets can be misleading, so how do you know what you are really buying? To help optical designers and engineers view optical datasheets more critically and ask the right questions of lens providers, this article discusses key datasheet parameters.

Designers have been known to “save the lens for last” when creating vision systems with very specific black box dimensions and lighting, resolution, and pixel specifications. One solution to this dilemma is a new and improved design approach called concurrent engineering.

This datasheet includes a detailed description of Schneider Optics’ bandpass filters, as well as information on their features and specifications. To find out how these filters can help with your applications involving biotech, biomedical, traffic, food/beverage inspection, laser, semiconductor, and scientific research, download the datasheet.